/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --background: #090916;
    --accent-light: #01a0e0;
    --accent-medium: #0671c0;
    --accent-dark: #224da8;
    --primary-text: #ffffff;
    --secondary-text: #cccccc;
    --border-light: rgba(255, 255, 255, 0.1);
    --card-background: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
        Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--background);
    color: var(--primary-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}
.logo {
    width: 200px;
    height: auto;
    background-color: #667eea;
    clip-path: circle(50%);
    padding: 20px;
}

.hero {
    min-height: 60vh;
    padding-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(
        135deg,
        var(--background) 0%,
        rgba(34, 77, 168, 0.1) 100%
    );
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
}

.hero-title {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 700;
    margin: 24px;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    color: var(--secondary-text);
    margin-bottom: 48px;
    font-weight: 300;
    line-height: 1.5;
}

.download-section {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.arrow-icon {
    width: 32px;
    height: 32px;
}

.qr-code {
    width: 200px;
    height: 200px;
    background: var(--primary-text);
    border-radius: 12px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: linear-gradient(
        135deg,
        var(--accent-medium) 0%,
        var(--accent-dark) 100%
    );
    color: var(--primary-text);
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(1, 160, 224, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(1, 160, 224, 0.4);
    background: linear-gradient(
        135deg,
        var(--accent-light) 0%,
        var(--accent-medium) 100%
    );
}

.download-btn:active {
    transform: translateY(0);
}

.features {
    padding: 100px 20px;
}

.section-title {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 64px;
    color: var(--primary-text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--card-background);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    background: var(--card-hover);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(1, 160, 224, 0.2);
    border-color: var(--accent-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    color: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(1, 160, 224, 0.1);
    border-radius: 16px;
}

.feature-icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--primary-text);
}

.feature-description {
    font-size: 16px;
    color: var(--secondary-text);
    line-height: 1.6;
    font-weight: 300;
}

.footer {
    padding: 60px 20px 40px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-text {
    font-size: 16px;
    color: var(--secondary-text);
    margin-bottom: 16px;
    font-weight: 300;
}

.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--accent-light);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
    font-weight: 400;
}

.footer-link:hover {
    color: var(--primary-text);
}

.footer-separator {
    color: var(--secondary-text);
    font-weight: 300;
}

@media (max-width: 768px) {
    .hero {
        min-height: 70vh;
        padding: 60px 20px;
    }

    .features {
        padding: 60px 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .feature-card {
        padding: 32px 24px;
    }

    .privacy {
        padding: 60px 20px;
    }

    .download-btn {
        padding: 14px 28px;
        font-size: 16px;
    }

    .qr-code {
        display: none;
    }

    .arrow-icon {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 42px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .feature-icon {
        width: 64px;
        height: 64px;
    }

    .feature-title {
        font-size: 20px;
    }

    .feature-description {
        font-size: 15px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

a:focus,
button:focus {
    outline: 2px solid var(--accent-light);
    outline-offset: 4px;
}
